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Capital and reserves - Fair value measurement (Details)
1 Months Ended 12 Months Ended
Aug. 31, 2022
USD ($)
shares
$ / shares
May 31, 2022
USD ($)
shares
$ / shares
Mar. 31, 2022
USD ($)
shares
$ / shares
Dec. 31, 2022
USD ($)
shares
Years
$ / shares
Dec. 31, 2021
shares
Disclosure of terms and conditions of share-based payment arrangement [line items]          
Number of shares issued upon exercise | shares         167,500
2018 Grant          
Disclosure of terms and conditions of share-based payment arrangement [line items]          
Weighted average fair value of options | $       $ 0.362  
Share price on grant date       $ 1  
Exercise price       $ 1  
Expected volatility       31.90%  
Expected life | Years       6  
Expected dividends       0.00%  
Risk-free interest rate       2.70%  
2021 Grant          
Disclosure of terms and conditions of share-based payment arrangement [line items]          
Weighted average fair value of options | $       $ 5.32  
Share price on grant date       $ 15  
Exercise price       $ 15  
Expected volatility       40.20%  
Expected life | shares       5  
Expected dividends       0.00%  
Risk-free interest rate       0.46%  
2022 Grant          
Disclosure of terms and conditions of share-based payment arrangement [line items]          
Weighted average fair value of options | $ $ 25.07 $ 26.3 $ 29.72    
Share price on grant date $ 51.86 $ 55.63 $ 68.94    
Exercise price $ 47.78 $ 51.37 $ 68.37    
Expected volatility 48.90% 48.40% 47.30%    
Expected life | shares 5 4.9 5    
Expected dividends 0.00% 0.00% 0.00%    
Risk-free interest rate 3.00% 3.00% 1.70%